将/a/b/c指向到/f/c的控制示例：

spring:cloud:gateway:routes:# =====================================- id: rewritepath_routeuri: http://example.orgpredicates:- Path=/a/b/**filters:- RewritePath=/a/b/(?<segment>.*), /f/$\{segment}

参见官方文档

RewritePath GatewayFilter Factory

The RewritePath GatewayFilter Factory takes a path regexp parameter and a replacement parameter. This uses Java regular expressions for a flexible way to rewrite the request path.

application.yml. 

spring:cloud:gateway:routes:# =====================================- id: rewritepath_routeuri: http://example.orgpredicates:- Path=/foo/**filters:- RewritePath=/foo/(?<segment>.*), /$\{segment}

For a request path of /foo/bar, this will set the path to /bar before making the downstream request. Notice the $\ which is replaced with $ because of the YAML spec.